verb + as + noun phrase
表示担任某种角色或身份。
He works as a teacher.
他作为一名教师工作。
作为
以…形式；像…一样；如同；做为；当作
Used to show that someone or something has a particular role, purpose, or function.
Introducing a basis of comparison, with an object in the objective case.
In the role of.
In the form of.
She works as a translator.
她作为一名翻译工作。
用法提示：此处“as”是介词，表示“作为”，引出身份或职业。
They used the old building as a warehouse.
他们把这栋旧楼用作仓库。
用法提示：此处“as”是介词，表示“作为”，说明用途或功能。
He was regarded as an expert in his field.
他被视为该领域的专家。
用法提示：此处“as”是介词，表示“作为”，引出被看待的身份。
表示担任某种角色或身份。
He works as a teacher.
他作为一名教师工作。
用于表达观点或看法，后接宾语和补语。
They regard him as a hero.
他们认为他是一位英雄。
grammar · medium
易错句子He works like a teacher.
正确表达He works as a teacher.
用 "like" 表示相似而非实际身份，"as" 才表示真实角色。
grammar · medium
易错句子He is as tall like his brother.
正确表达He is as tall as his brother.
比较结构 "as...as" 中第二个词必须是 "as"，不能用 "like"。
grammar · medium
易错句子She is as a nurse.
正确表达She works as a nurse.
"as" 不能直接跟在系动词 "be" 后表示职业，需搭配行为动词如 "work"。
结果；因此
He forgot his passport, and as a result, he couldn't board the flight.
他忘了带护照，结果没能登机。
作为一个整体；总体上
The strategy should be considered as a whole.
应该从整体上考虑这一战略。
事实上；其实
As a matter of fact, I've never met her.
事实上，我从未见过她。
作为…的手段
They use games as a means of teaching English.
他们把游戏当作教英语的手段。
作为例子；例如
He used the car as an example to explain the problem.
他用汽车作为例子来解释这个问题。
as 常用于引出比较的基准，如 as tall as。
as 可表示“作为”，介绍人的身份或角色，如 as a teacher。
as 也可说明事物的用途或功能，如 as a tool。
such as 这类表达用 as 引出例子。
as 表示以某种身份或形式出现。
事实上；其实
As a matter of fact, I've never been there.
事实上，我从未去过那里。
通常；一般来说
As a rule, I get up at seven.
通常我七点起床。
像往常一样
He arrived late as usual.
他像往常一样迟到了。
我独自漫游，像一朵云。
First line of William Wordsworth's poem 'I Wandered Lonely as a Cloud', often known as 'Daffodils'.
这是威廉·华兹华斯诗歌《我独自漫游，像一朵云》（常称《水仙花》）的第一行。
我们之于天神，正如顽童眼中的苍蝇；他们杀害我们，为了取乐。
Spoken by the Earl of Gloucester in Shakespeare's play King Lear.
出自莎士比亚戏剧《李尔王》中格洛斯特伯爵之口。
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Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.